Your Best Impulse Buy and your Worst Impulse Buy

Best: Borderlands - Had never even heard of it before I was working the midnight launch when it came out. Spent my whole shift flipping through the guide in my downtime and ended up buying it. Best impulse ever.

I honestly can't think of my worst because I rarely buy anything impulsively.

Honorable mentions for best:

Binary DomainBourne Conspiracy

I can't count them because I rented them only.

At least one person listed Skyrim as their best and that makes me wonder...what exactly are people considering "impulse buys?" My thinking was the same as the poll so I'm wondering how a member of Gamefaqs never even "accidentally" researched Skyrim. It was one of the biggest releases in just about this whole generation. Same goes for Halo 4.

EDIT: Considering my question I thought I should clarify that my Dead Space purchase was when it was brand new. If it wasn't release day then it was the same week. Obviously buying it recently and considering it an impulse would fit into my question. At least I haven't been able to visit any video game site in the past year or 2 without seeing something about Dead Space. That's why I'm curious about the others.

Worst: FF-XIII - what a train wreck of a game. Halo 4 - nothing inherently wrong with the game, but I breezed through the story in a day, played online for 3 evenings, and never played it again.---Well they tell you: never hit a man with a closed fist. But it is, on occasion, hilarious.DW FC: 0430-4094-0916 DW Dawn FC: 0344-7129-6960

Best: Parasite Eve IIWorst: Dragon Ball Budokai 2---If you've no respect for the fact that people have put the time aside to play a game with you, play a single-player game. There are thousands to choose from.

Worst: Toss up between RDR and Demon Souls. With RDR, I was expecting something of the same quality as GTA, but what I got was GTA without anything to do in the world. Demon Souls was listed as an RPG yet it just a clunky and dull hack n slash.